_Specimens examined._--Total, 10: highway at School Section Canyon,
MV 7894/507; Sect. 27, head of east fork of Navajo Canyon, 7900
ft., 69265; and Prater Canyon, 7600 to 7800 ft., MV 7835/507,
7837/507, 7846/507, 7874/507, 7875/507, MVZ 74411-74413.
In 1956, I observed _S. lateralis_ 1/2 mi. W of Park Point, 3/4 mi. WSW
Park Point, in the public campground at Park Headquarters, at the lower
well in Prater Canyon, and at two other places on the North Rim. Other
observations on file were made at Prater Grade, Park Point, "D" cut (on
North Rim 1 mi. WSW Park Point), and Morfield Canyon. A juvenile was
noted at Park Point on June 28, 1952, by Jean Pinkley, and five young
were seen together at "D" cut on July 3, 1935. The earliest observation,
also recorded by Jean Pinkley, was on February 1, 1947. All of the
localities with the exception of Park Headquarters are above 7500 feet,
and most of the localities are in vegetation that is predominantly
oak-brush.